Campbell Town murder mystery continues

Tasmanian police are frustrated they have not been able to charge anyone with the murder of a man at Campbell Town two years ago.

Shane Geoffrey Barker, 36, was shot dead at his home in August 2009.

There is a $50,000 reward for information that leads to a conviction in the case.

Inspector Scott Flude says police are frustrated but have not given up.

"It's certainly been frustrating for us. Tomorrow is the second anniversary of the matter and it's frustrating that any of these things on our books that we haven't had closure for the family and that's disappointing," he said.